Age category for which the bottle/drinker is intended.
Small children grow and develop very quickly, so the age category of children's products is indicated not by years, but by months. Each age has its own characteristics of physical and mental development, and these features are taken into account by the manufacturer in the design of bottles and drinkers. It is extremely undesirable to deviate from these recommendations: a container that is not suitable for age can be uncomfortable for the baby, and even dangerous.
Now there are such age recommendations:
for newborns,
from 3 months,
from 6 months,
from 9 months,
from 12 months,
from 18 months.
